13039880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6653}}^1$

素因数の和:6678

約数の個数: 48

約数和(自身を含む): 34135020

約数和(自身を除く): 21095140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6653, 13306, 26612, 33265, 46571, 53224, 66530, 93142, 133060, 186284, 232855, 266120, 325997, 372568, 465710, 651994, 931420, 1303988, 1629985, 1862840, 2607976, 3259970, 6519940, 13039880]

約数ペア:

[(1, 13039880), (2, 6519940), (4, 3259970), (5, 2607976), (7, 1862840), (8, 1629985), (10, 1303988), (14, 931420), (20, 651994), (28, 465710), (35, 372568), (40, 325997), (49, 266120), (56, 232855), (70, 186284), (98, 133060), (140, 93142), (196, 66530), (245, 53224), (280, 46571), (392, 33265), (490, 26612), (980, 13306), (1960, 6653)]